Actually, love is one of several feel which much complacated. the wiseman says "from love will came hate, and from hate will came love". it mean, when the person love to much and if someday she/he betray a person, it can make hate feels. on the otherway, when some one hate some thing too much, and someday when they will be understand each other, it can make so much love.
in other case, every people who life in this earth, have a negatif and positif side, beacause it natural laws. in other pholosophy they call it yin and yang yin is about love and yang is about hate. so when some one can control yin and yang in equill situation, they are can life in peace feel of their physical and soul.
I am sorry about my english sir, because I am rarely writing in english